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	Class	Description
	ArrayUtil	The ArrayUtil utility class is an all-static class with methods for working with arrays within Flex.
	ColorUtil	The ColorUtil class is an all-static class with methods for working with RGB colors within Flex.
	GraphicsUtil	The Graphics class is an all-static class with utility methods related to the Graphics class.
	LoaderUtil	The LoaderUtil class defines a utility method for use with Flex RSLs.
	NameUtil	The NameUtil utility class defines static methods for creating names for Flex objects.
	ObjectProxy	This class provides the ability to track changes to an item managed by this proxy.
	ObjectUtil	The ObjectUtil class is an all-static class with methods for working with Objects within Flex.
	SecurityUtil	Utilities for working with security-related issues.
	StringUtil	The StringUtil utility class is an all-static class with methods for working with String objects within Flex.
	UIDUtil	The UIDUtil class is an all-static class with methods for working with UIDs (unique identifiers) within Flex.
	XMLNotifier	Used for watching changes to XML and XMLList objects.